This Practice Note explains the conditions that must be satisfied under section 79 of the Housing Act 1985 (HA 1985) for a secure tenancy to exist, and subsequently discusses each of these conditions including whether accommodation qualifies as a dwelling, whether the dwelling is the tenant’s principal home, the landlord condition, the tenant condition, and the exceptions under HA 1985, Sch 1 where a tenancy or licence cannot be secure. It also covers how variation of a secure tenancy can be achieved and the additional rights of secure tenants.